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agasfer [191]
3 years ago
10

What is equivalent to (18x+21)-2x

Mathematics
2 answers:
Jlenok [28]3 years ago
8 0
The answer would b 16x+21
Solnce55 [7]3 years ago
5 0

Answer:

16x+21

Step-by-step explanation:

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–3x + 4y = 8<br><br> -4x + 3y=-6<br>are these Graphs perpendicular, parallel, or niether.​
Alex777 [14]

Answer:

Step-by-step explanation:

7 0
3 years ago
Write 0.12 as a fraction.<br>Let x = ?<br>100x = ?<br>100x - x = ? - ?<br>99x = ?<br>X = ?<br>​
N76 [4]

Answer:

6/50 simplified to 3/25

Step-by-step explanation:

step 1 Address input parameters & values.

Input parameters & values: The decimal number = 0.12

step 2 Write it as a fraction

0.12/1

step 3 Multiply 100 to both numerator & denominator

(0.12 x 100)/(1 x 100) = 12/100

It can be written as 12% = 12/100 or 12/100

step 4 To simplify 12/100 to its lowest terms, find LCM (Least Common Multiple) for 12 & 100.

4 is the LCM for 12 & 100

step 5 divide numerator & denominator by 4

12/100 = (12 / 4) / (100 / 4)

= 3/25

3/25 is a simplest fraction for the decimal point number 0.12

4 0
4 years ago
When multiplying a negative times a positive your answer should be what
BARSIC [14]
The answer should be a negative.
6 0
4 years ago
Read 2 more answers
Add three data values to the following data set so the mean increases by 10 and the median does not change. {42, 37, 32, 29, 20}
aksik [14]
Sum of the numbers in the set: 42+37+32+29+20 =160

Current mean: 160/5 = 32

Median = the valvue of the middle = 32.

New mean: 32+10= 42.

Sum of numbers in the new set = 42*8 = 336

Difference: 336 - 160 = 176

I want to include 32, so that the new median stays in 32.

So the other two numbers must add 176 - 32 = 144

I will use a smaller number than 32 and the other greater (again in order to  keep the same median.

I will choose 28 and 144 - 28 = 116.

So my three new numbers are 28, 32 and 116 and the new set is {116, 42, 37, 32, 32, 29,28, 20}

Checking:

Sum of the terms: 116+42+37+32+32+29+28+20 = 336

Mean = 336 / 8 = 42, which is 10 more than the original mean.

And the new median is (32+32)/2 = 32. The same of the original set.
8 0
3 years ago
Is 3.32... irrational or rational​
NeX [460]

Answer: I think this answer is irrational numbers please let me know if im

wrong !

Step-by-step explanation:

7 0
3 years ago
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